Should be oxygen .. but water comes out of the leafs stomata ..
Answer: 5.1 gram
Explanation:
To calculate the moles :
![\text{Moles of} HCl=\frac{20g}{36.5g/mol}=0.55moles](https://tex.z-dn.net/?f=%5Ctext%7BMoles%20of%7D%20HCl%3D%5Cfrac%7B20g%7D%7B36.5g%2Fmol%7D%3D0.55moles)
![\text{Moles of} NaOH=\frac{16.3g}{40g/mol}=0.41moles](https://tex.z-dn.net/?f=%5Ctext%7BMoles%20of%7D%20NaOH%3D%5Cfrac%7B16.3g%7D%7B40g%2Fmol%7D%3D0.41moles)
According to stoichiometry :
1 mole of
require = 1 mole of
Thus 0.41 moles of
will require=
of
Thus
is the limiting reagent as it limits the formation of product and
is the excess reagent.
Moles of HCl left = (0.55-0.41) = 0.14
Mass of
left =![moles\times {\text {Molar mass}}=0.14moles\times 36.5g/mol=5.1g](https://tex.z-dn.net/?f=moles%5Ctimes%20%7B%5Ctext%20%7BMolar%20mass%7D%7D%3D0.14moles%5Ctimes%2036.5g%2Fmol%3D5.1g)
Thus 5.1 g of hydrochloric acid could be left over by the chemical reaction.
The density of marble is between 2.6 and 2.8 grams per cm³ .
Density doesn't depend on how much mass or volume of it you have.
The density of a chip of it is the same as the density of a truckload of it.